ProSource XFit Loop Resistance Bands, Heavy Duty 41" Long for Crossfit, Assisted Pull-Ups, Powerlifting, Mobility, Full Body Workouts, and Stretching Functional fitness - These long, closed-loop resistance body bands can help improve strength, agility, and flexibility. Work your muscles through a full range of motion and in every plane of movement for healthy, fit body that transfers to daily life Super strong & durable - Heavy duty latex provides exceptional resistance, as well as strong support for exercises like muscle-ups and pull-ups. The thicker the band, the heavier the resistance Perfect for total body workouts - The 41-inch bands are long enough to suit any height, and can be looped twice or combined with other bands to shorten or increase resistance. Ideal for Crossfit WOD's, powerlifting, agility exercises, and assisted stretches Your wod partner - Durable XFit bands are great for supporting you as you work on gaining strength and trying new movements. When you don't have a workout partner, you can use them to assist you in pull-ups, muscle-ups, band sprints, push-ups, and stretching Multiple resistance level - Black: 60-150 lb; Blue: 50-120 lb; Red: 40-80 lb; Green: 30-50 lb; Yellow: 10-35 lb. Buy just one or the whole set to continue increasing strength and progressing in your fitness goals